Promising efficiency enhancement in cobalt redox couple-based back-illuminated dye-sensitized solar cells with titanium foil substrate

Myoung Kim, Ho Gyeong Yun, Lee Woon Jang, Dae Woo Jeon, Man Gu Kang, Jeong Hun Yoon, Ju Mi Kim, Jong Hyeok Park, In-Hwan Lee, Jeum Jong Kim

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We demonstrate that a [Co(bpy)3]2+/3+ (PF6)2/3 redox couple is an effective strategy for cost-effective and highly efficient dye-sensitized solar cells (DSSCs). Their high transmittance and large complex size make cobalt redox couples advantageous in back-illuminated devices. Furthermore, the use of thin TiO2 films, together with the naturally formed blocking layer at the outermost surface of Ti substrate, effectively alleviate the drawbacks of cobalt electrolyte. By virtue of these simultaneous effects, we achieve a highly promising power conversion efficiency of 7.12%.

Original languageEnglish
Pages (from-to)32-37
Number of pages6
JournalJournal of Power Sources
Volume278
DOIs
Publication statusPublished - 2015 Mar 15
Externally publishedYes

Fingerprint

Cobalt
Titanium
Metal foil
foils
cobalt
titanium
solar cells
dyes
augmentation
Substrates
Electrolytes
Conversion efficiency
transmittance
electrolytes
costs
Thin films
thin films
Costs
Oxidation-Reduction
Dye-sensitized solar cells

Keywords

  • Back illumination
  • Cobalt electrolyte
  • Dye-sensitized solar cells (DSSCs)
  • Metal foil
  • Organic dye

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Promising efficiency enhancement in cobalt redox couple-based back-illuminated dye-sensitized solar cells with titanium foil substrate. / Kim, Myoung; Yun, Ho Gyeong; Jang, Lee Woon; Jeon, Dae Woo; Kang, Man Gu; Yoon, Jeong Hun; Kim, Ju Mi; Park, Jong Hyeok; Lee, In-Hwan; Kim, Jeum Jong.

In: Journal of Power Sources, Vol. 278, 15.03.2015, p. 32-37.

Research output: Contribution to journalArticle

Kim, Myoung ; Yun, Ho Gyeong ; Jang, Lee Woon ; Jeon, Dae Woo ; Kang, Man Gu ; Yoon, Jeong Hun ; Kim, Ju Mi ; Park, Jong Hyeok ; Lee, In-Hwan ; Kim, Jeum Jong. / Promising efficiency enhancement in cobalt redox couple-based back-illuminated dye-sensitized solar cells with titanium foil substrate. In: Journal of Power Sources. 2015 ; Vol. 278. pp. 32-37.
@article{64592b917d7e485c99146920ddf48b36,
title = "Promising efficiency enhancement in cobalt redox couple-based back-illuminated dye-sensitized solar cells with titanium foil substrate",
abstract = "We demonstrate that a [Co(bpy)3]2+/3+ (PF6)2/3 redox couple is an effective strategy for cost-effective and highly efficient dye-sensitized solar cells (DSSCs). Their high transmittance and large complex size make cobalt redox couples advantageous in back-illuminated devices. Furthermore, the use of thin TiO2 films, together with the naturally formed blocking layer at the outermost surface of Ti substrate, effectively alleviate the drawbacks of cobalt electrolyte. By virtue of these simultaneous effects, we achieve a highly promising power conversion efficiency of 7.12{\%}.",
keywords = "Back illumination, Cobalt electrolyte, Dye-sensitized solar cells (DSSCs), Metal foil, Organic dye",
author = "Myoung Kim and Yun, {Ho Gyeong} and Jang, {Lee Woon} and Jeon, {Dae Woo} and Kang, {Man Gu} and Yoon, {Jeong Hun} and Kim, {Ju Mi} and Park, {Jong Hyeok} and In-Hwan Lee and Kim, {Jeum Jong}",
year = "2015",
month = "3",
day = "15",
doi = "10.1016/j.jpowsour.2014.12.057",
language = "English",
volume = "278",
pages = "32--37",
journal = "Journal of Power Sources",
issn = "0378-7753",
publisher = "Elsevier",

}

TY - JOUR

T1 - Promising efficiency enhancement in cobalt redox couple-based back-illuminated dye-sensitized solar cells with titanium foil substrate

AU - Kim, Myoung

AU - Yun, Ho Gyeong

AU - Jang, Lee Woon

AU - Jeon, Dae Woo

AU - Kang, Man Gu

AU - Yoon, Jeong Hun

AU - Kim, Ju Mi

AU - Park, Jong Hyeok

AU - Lee, In-Hwan

AU - Kim, Jeum Jong

PY - 2015/3/15

Y1 - 2015/3/15

N2 - We demonstrate that a [Co(bpy)3]2+/3+ (PF6)2/3 redox couple is an effective strategy for cost-effective and highly efficient dye-sensitized solar cells (DSSCs). Their high transmittance and large complex size make cobalt redox couples advantageous in back-illuminated devices. Furthermore, the use of thin TiO2 films, together with the naturally formed blocking layer at the outermost surface of Ti substrate, effectively alleviate the drawbacks of cobalt electrolyte. By virtue of these simultaneous effects, we achieve a highly promising power conversion efficiency of 7.12%.

AB - We demonstrate that a [Co(bpy)3]2+/3+ (PF6)2/3 redox couple is an effective strategy for cost-effective and highly efficient dye-sensitized solar cells (DSSCs). Their high transmittance and large complex size make cobalt redox couples advantageous in back-illuminated devices. Furthermore, the use of thin TiO2 films, together with the naturally formed blocking layer at the outermost surface of Ti substrate, effectively alleviate the drawbacks of cobalt electrolyte. By virtue of these simultaneous effects, we achieve a highly promising power conversion efficiency of 7.12%.

KW - Back illumination

KW - Cobalt electrolyte

KW - Dye-sensitized solar cells (DSSCs)

KW - Metal foil

KW - Organic dye

UR - http://www.scopus.com/inward/record.url?scp=84919642154&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84919642154&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2014.12.057

DO - 10.1016/j.jpowsour.2014.12.057

M3 - Article

AN - SCOPUS:84919642154

VL - 278

SP - 32

EP - 37

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

ER -